Thesis (Sc. D.)--University of Michigan, 1934. / "Photo-lithoprint reproduction of author's manuscript." Bibliography: p. 37.

Part of Thesis (Ph. D.)--University of Michigan. / Cover title. At head of title: Association internationale des ponts et charpentes ... International association for bridge and structural engineering. "Reprinted from the third volume of the 'Publications'" of the Association. Title appears also in German. Text includes French and German resumés. Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1975. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 145-148).

The existing design provision in North American Specification for Cold- Formed Steel Structural Member (AISI S100) for the bearing strength of bolted connections were developed from tests on bolted connected sheets which were restrained by bolt nut and head with or without washers. However, in the cold-formed assemblies, particularly in trusses, the single bolt goes through both sides of the connected sections, making the connected sheets on each side unrestrained. the warping of the unrestrained sheet may reduce the bearing strength of the bolted connection. This research investigates the behavior and strength of bearing failure in bolted connections in cold-formed steel trusses. Tensile tests were conducted on trusses connections with various material thicknesses. It was found that the AISI S100 works well for thick connections but provides unconservative predictions for thin materials. Based on the experimental results, a modified bearing strength method is proposed for calculating the bearing strength of bolted truss connections. the proposed method can be used for any cold-formed steel connections with unrestrained sheet.

The element and system models for linear and nonlinear space trusses were formulated and implemented relative to cylindrical coordinates. Nonlinear equilibrium paths were traced using the modified Riks/Wempner method. Two radially symmetric reticulated domes which exhibit snap-through instability and which were subjected to radially symmetric loads were analyzed both linearly and nonlinearly. Along with the entire structures, "pie slices" of the structures were also analyzed. Accuracy was observed by comparison of element forces or of critical load values to those previously presented for these trusses. Reduction of computational effort from analysis of "pie slices" was studied, as were suppression and generation of bifurcation buckling modes. Structural models in cylindrical coordinates were found to greatly reduce computational effort by analysis of "pie slices" of radially symmetric structures with radially symmetric loads, and analysis of "pie slices" provided qualitative information regarding buckling mode geometries when techniques for branching onto bifurcation paths failed. / Master of Science

No description available.

Thesis (M.Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 1981. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH. / Bibliography: p. 55. / by Suzanne Stewart. / M.Arch.

Thesis (D. SC.)--University of Michigan. / "Photo-lithoprint." Bibliography: p. 37.

No description available.

No description available.